Mou Inai Kimi to Wangan o Aruite

Ochiai, who is gloomy and shy, wasn't good with his kouhai who is cheerful and has high communication skills in contrast to himself, Kirigaya. Kirigaya died suddenly in an accident a year ago. Ochiai continues to regret having hit Kirigaya with frustration just before he died. One day, a ghost of Kirigaya appears in front of him... The bay of the tranquillity night. The exchange between the two lonely people begins.

Original Web Manga